Generating parallel applications for distributed memory systems using aspects, components, and patterns

摘要

Developing and debugging parallel programs particularly for distributed memory architectures is still a difficult task. The most popular approach to developing parallel programs for distributed memory architectures requires adding explicit message passing calls into existing sequential programs for data distribution, coordination, and communication. This approach creates separate source tree for sequential code and parallel code as well as further branches based on the specific set of message passing primitives used (point-to-point communication vs. one-sided communication). Aspect oriented programming provides an option to separate programming concerns and weave code into applications instead of directly modifying the original program. This paper described an effort to use Aspect Oriented Programming (specifically AspectC++), components and patterns for data distribution and message passing to develop parallel programs without making any changes to existing sequential program. This technique is used to generate a suite of parallel matrix multiplication algorithms as well as several simple parallel algorithms without making any changes to the sequential code. Performance results obtained indicate that the desired functionality is achieved without compromising performance.